From fab4edf42d2d68d0aa67822650174dcd0ee25ffa Mon Sep 17 00:00:00 2001 From: Pierre-Louis Bossart Date: Fri, 24 May 2019 14:09:21 -0500 Subject: [PATCH] ASoC: SOF: pcm: remove warning - initialize workqueue on open If the SOF hw_params() fail, typically with an IPC error thrown by the firmware, the period_elapsed workqueue is not initialized, but we still cancel it in hw_free(), which results in a kernel warning. Move the initialization to the .open callback. Tested on Broadwell (Samus) and IceLake. Fixes: e2803e610ae ("ASoC: SOF: PCM: add period_elapsed work to fix race condition in interrupt context") GitHub issue: https://github.com/thesofproject/linux/issues/932 Reviewed-by: Takashi Iwai Signed-off-by: Pierre-Louis Bossart Signed-off-by: Mark Brown --- sound/soc/sof/pcm.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/sound/soc/sof/pcm.c b/sound/soc/sof/pcm.c index d6dc9a7df0f4..dace6c4cd91e 100644 --- a/sound/soc/sof/pcm.c +++ b/sound/soc/sof/pcm.c @@ -211,9 +211,6 @@ static int sof_pcm_hw_params(struct snd_pcm_substream *substream, /* save pcm hw_params */ memcpy(&spcm->params[substream->stream], params, sizeof(*params)); - INIT_WORK(&spcm->stream[substream->stream].period_elapsed_work, - sof_pcm_period_elapsed_work); - /* clear hw_params_upon_resume flag */ spcm->hw_params_upon_resume[substream->stream] = 0; @@ -432,6 +429,9 @@ static int sof_pcm_open(struct snd_pcm_substream *substream) dev_dbg(sdev->dev, "pcm: open stream %d dir %d\n", spcm->pcm.pcm_id, substream->stream); + INIT_WORK(&spcm->stream[substream->stream].period_elapsed_work, + sof_pcm_period_elapsed_work); + caps = &spcm->pcm.caps[substream->stream]; ret = pm_runtime_get_sync(sdev->dev); -- 2.30.2